Earthquake with magnitude of Md 2.0 on date 29-04-1985 and time 06:57:58 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude Md 2.0 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 29-04-1985 04:57:58 (UTC)
  • 29-04-1985 06:57:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.06, 8.51 at 18 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Noli SV 17 2736 2736
Finale Ligure SV 17 11711 14447
Borgio Verezzi SV 19 2205 16652
Spotorno SV 19 3803 20455

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km S of Savona (61345 inhabitants)
52 Km SW of Genova (586655 inhabitants)
64 Km E of Sanremo (54807 inhabitants)
84 Km E of Cuneo (56081 inhabitants)
95 Km S of Alessandria (93943 inhabitants)
96 Km S of Asti (76202 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 Md 2.0 1985-04-29
04:57:58
44.07 8.51 18 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 5629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-29 04:57:58 ± 0.253
Latitude 44.07 ± 0.01
Longitude 8.51 ± 0.02
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 5629

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1917.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 276
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.00777
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 5629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:10:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.STV.Z. 1985-04-29T04:58:28.00 10.0 undecidable manual SN 282 0.0078 0 0.6
--.ROB.Z. 1985-04-29T04:58:17.30 10.0 undecidable manual SG 297 0.0045 0.18 0.5
--.STV.Z. 1985-04-29T04:58:15.50 10.0 undecidable manual PN 282 0.0078 -0.04 1.5
--.IMP.Z. 1985-04-29T04:58:15.10 10.0 undecidable manual SG 251 0.0041 -0.54 0
--.CK1.Z. 1985-04-29T04:58:13.00 10.0 undecidable manual SG 335 0.0035 -0.27 0.3
--.FIN.Z. 1985-04-29T04:58:09.50 10.0 undecidable manual SG 303 0.0023 0.23 0.4
--.ROB.Z. 1985-04-29T04:58:09.40 10.0 undecidable manual PG 297 0.0045 0.14 1.6
--.IMP.Z. 1985-04-29T04:58:08.60 10.0 undecidable manual PG 251 0.0041 0.2 1.2
--.CK1.Z. 1985-04-29T04:58:07.00 10.0 undecidable manual PG 335 0.0035 -0.04 2.1
--.FIN.Z. 1985-04-29T04:58:04.60 10.0 undecidable manual PG 303 0.0023 -0.13 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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